? 开头部分 (Opening)

功能 句型
说明目的 I am writing to inquire about... / I am writing to apply for...
感谢 Thank you for your prompt response. / I appreciate your help with...
提及之前沟通 Further to our conversation yesterday... / With reference to your email dated...

? 中间部分 (Body)

功能 句型
提供细节 Specifically, ... / To be more precise, ...
表达观点 From my perspective, ... / It is widely believed that...
提出建议 I would suggest that ... / It might be a good idea to...

? 结尾部分 (Closing)

功能 句型
期待回复 I look forward to hearing from you. / I await your reply.
提供帮助 Please do not hesitate to contact me if you have any questions.
再次感谢 Thank you for your time and consideration.